Hi Random 503. I'm sorry to read that the timing for your upcoming presentation sucks. Way too often that can be the case.

There's no way for me to know what you'll be capable of in the future. Not sure you quite know either. I don't know yet for myself. In any case, if you are becoming ill, you're becoming ill and need to take care of your mental health. A suggestion that came to my mind is that you consider asking them for a bit of a delay for your presentation so that you can consider the whole thing a little longer and work to stabilize. After all, people get sick. They can't expect people not to. Just my thought.

Welcome to the forum!